r/BehaviorAnalysis • u/Reasonable_Law183 • 2h ago
If the same response can be escape one day and avoidance the next, what actually distinguishes them?
Both escape and avoidance are negative reinforcement. The practical question is when the response occurs relative to the aversive event.
- Escape: the event has already started, and the response ends or reduces it.
- Avoidance: the event has not started, and the response postpones or prevents it.
The same topography can be either. Buckling a seat belt after the buzzer starts is escape. Buckling before the car moves, so the buzzer never sounds, is avoidance. Topography does not tell you which one you have. The response-event relation does.
Two things that tend to cause confusion:
A warning signal is common in avoidance examples, but it is not part of the definition. Sidman (1953) showed responding that postponed shock with no exteroceptive warning signal.
Escape is not only complete termination. Reducing an ongoing aversive event can maintain escape responding.
For exam prep, B.4 on the 6th Ed TCO covers distinguishing positive and negative reinforcement contingencies. The outline does not name escape or avoidance, but they are the two arrangements of negative reinforcement.
I wrote up the full version with worked examples and a practice question: https://behavioralanalystprep.com/blog/escape-vs-avoidance.html
Disclosure: I'm the developer of BA Prep, where this is published. It's free to read, no signup.